How to Buy Glasses Online

How to Buy Glasses Online

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By Claire Capuano
Reviewed by Beck Jinnette
Beck Jinnette

Reviewed by

Beck Jinnette
Beck has over 17 years of experience in eye care, holding her Certificate IV in Dispensing in Australia.
Buying glasses online shouldn’t be daunting, in just a few easy steps you can find the perfect pair that suit you and your vision needs.
three pairs of eyeglasses on a table

We buy many things online, from groceries to clothes, and while these things seem “normal,” some products are considered a bit more complex. Purchasing eyewear online may seem exciting, but with questions like frame fit and prescription accuracy, it can be daunting to some. 

At SmartBuyGlasses we guarantee that with a few easy steps and access to our online opticians, buying prescription glasses online is simple and easy. Our customer service team is also available to help you along the way.

What do I need to buy glasses online?

When purchasing prescription eyeglasses from online glasses retailers, you will usually need three things:

  • Your up-to-date eye prescription
  • Your pupillary distance
  • Your vision insurance information (if you have coverage)

An updated eye prescription is necessary for purchasing prescription glasses. It’s important to always schedule your yearly eye exam with your eye doctor to identify vision problems, write your prescription, and address your eye care needs.

You don’t need a prescription if you’re purchasing blue light glasses, sunglasses, or other non-prescription eyewear. However, even if you don’t require prescription eyewear, having an eye exam at least every two years is still important to maintain eye health.

instructions on how to measure your pupillary distance

Can I order glasses online without a prescription?

If you require prescription lenses, you will need an up-to-date eye prescription during the ordering process. Your glasses prescription is essential to ensure you get the proper vision correction. If you’ve misplaced your prescription, you can use our Lens Scanner app to retrieve your prescription information from your current pair of single vision lenses.

two pairs of eyeglasses on a table next to an eye prescription

Advantages of buying glasses online

There are many advantages to buying glasses online, convenience being one of the biggest. From the comfort of your home, you can shop for new eyewear on your own time. Shopping at your leisure removes the pressure many people face in-store.

Shopping online for glasses also gives you access to a more extensive selection of frames, making it easier to find a new pair. Online you can browse various brands, styles, and colours. Prices online tend to be more affordable, and with the opportunity to compare prices, you are guaranteed to find the perfect pair at the best price.

Ordering prescription glasses online

Buying a pair of glasses shouldn’t cause any stress or for you to pay too much money. If it’s your first time purchasing eyeglasses online, follow these simple steps.

1. See an eye doctor to get an updated prescription

As mentioned, seeing an Optometrist for an eye exam and receiving an updated prescription is the first step in buying glasses online and ensuring clear vision. At SmartBuyGlasses, you have the option to upload, manually enter, or send in your prescription after the check-out process.

eye exam machine

2. Choose your frame width

Purchasing glasses that fit properly is essential. Glasses should fit your face correctly in order to provide the best correction. Our ‘medium’ frame width works well for most people, but we carry glasses with frame measurements from 38mm-69mm. We also offer a low bridge fit, ideal for those with higher cheekbones and a flatter nose bridge.

Your pupillary distance (PD) and frame measurement from your current glasses can help determine the best size for you. PD reveals how far your pupils are from one another and is helpful in centring your frames on your face.

Check the inside arm of your current glasses frame for the lens width, nose bridge size, and temple arm length. Whether you’re happy with the fit of your existing frames or want to change something, these numbers can aid you in the selection process.

DID YOU KNOW

Buying glasses online is not only easy and convenient but can also be fun. With virtual try-on technology, you can now see how glasses will look on you before purchasing.

How can I get my pupillary distance?

Your PD will usually be measured as part of an eye exam and then written on your prescription. If you misplace your prescription, there are two simple ways to get your PD; use our Pupillary Distance app to retrieve the details or measure it yourself.

The Pupillary Distance app enables you to get your PD quickly and easily with only your phone or computer, and a card with a magnetic strip. If you don’t have access to the tools required to use our app, you can easily measure your PD yourself. All you need is a ruler and a mirror. To measure your PD at home:

  1. Stand in front of a mirror and hold a ruler to the bridge of your nose or against the line of your eyebrows.
  2. Close your right eye and align the ruler’s zero with your left pupil.
  3. Keep the ruler still, then close your left eye and open your right eye.
  4. The number aligned with your right pupil’s center is your PD measurement.
instructions on how to measure your pupillary distance

3. Find frames that suit your face shape

While you can wear any glasses frames you want, certain frame styles suit particular face shapes. If you’re unsure of your face shape, follow these easy steps.

  1. Look in the mirror and outline your reflection on the mirror with a bar of soap or lipstick.
  2. Consider the shape you’ve just drawn; compare and match it to a standard face shape below.

After you’ve understood your face shape, it’s time to choose a complimenting frame.

different face shapes: oval face, square face, round face, heart face, diamond face, rectangle face

How do I know what style of glasses to get?

If you have an oval face, you can wear almost any style, including oversized glasses, rectangular, square, round, or cat-eyed frames. For those with a square face, you should opt for oval or round glasses to soften your features. You can use rectangular, square, or cat-eye glasses to add sharp angles and definition if you have a round face shape.

People with heart-shaped faces tend to have wider foreheads and a narrow chin. This shape works well with various styles, including rectangle, oval, and cat-eye. The least common face shape is diamond; a geometric, rectangular, or oval frame would work well for this shape.

eyeglasses frames shapes

4. Find a frame that suits your style

Of course, it’s important to understand what frames may look best on you, but it’s also important to consider your style and what may make you feel the best. Everyone has a certain sense of style, whether subtle or bold, neutral or bright, or anything in between; finding eyewear to match your aesthetic is essential.

Consider the type of glasses frames you want. Do you prefer rimless or full-rim frames? Be sure to consider the frame material as well. Metal or titanium frames are minimalistic and sleek. Plastic frames are generally lightweight and comfortable for everyday wear.

Don’t forget about colour. These days, frames are available in all colour blocks, gradients, and patterns. Think about how and where you’ll wear your glasses or sunglasses, then select the frames that best fit your lifestyle and complete your wardrobe.

5. Choose your lenses and coatings

Now that you’ve chosen frames, it’s time to select your lenses. With a wide range of lenses available, it may be hard to know which to select. Most frames can be fitted with prescription lenses, including single vision and progressive, and coatings like blue light block. Every lens has its benefits, so it’s essential to understand what you need from your new eyeglasses.

Your prescription for eyeglasses will guide you in choosing your lenses for vision correction. If you want to reduce eye strain caused by too much screen time, an anti-glare coating can be added to your lenses.

SmartBuyGlasses has many different lens options and will recommend lenses based on the frames you choose to ensure they’re not too thick or thin. Lenses are available at different widths, with anti-reflective coatings, UV protection, and other features. To learn more about different lenses, head to our Lens Hub to read more.

different types of lenses for glasses

6. Place your order

Now that you’ve found your perfect frames and added lenses, it’s time to place your order. Before purchasing, check with your insurance provider to see if they will cover  all or some of your frame or lens costs.

At check out, enter your payment details, and if you have vision insurance, be sure to download an invoice and claim a reimbursement directly with your provider. It’s important to note that SmartBuyGlasses offers 100-day returns and a 2-year warranty so you can feel confident when you shop online.

Can I try on glasses when ordering online?

With advances in virtual AI technology, you can now try on over 10,000 glasses before purchasing your new pair using our Virtual Try-On tool. With so many frame styles, a virtual try-on is helpful as you begin your search.

To get started, all you need is your phone or computer. You’ll take a short video of yourself and then are free to try on frame after frame for as long as you want, eliminating any pressure or embarrassment you may experience in a retail store.

Is it a good idea to buy glasses online?

Buying glasses online has many benefits. Finding quality glasses online doesn’t have to be complicated or costly. Besides taking advantage of online savings, you can avoid shopping in-store, where you may only be able to try on up to five frames.

Shopping online for eyewear opens the door to an endless amount of frames and lenses. It allows you to experiment and find a frame style that may not be available in-store.

Buying glasses online

Hopefully, how to buy glasses online is a bit clearer, and you’re ready to try it. SmartBuyGlasses carries one of the largest eyewear selections for men, women, and kids. We know buying eyeglasses can be stressful, but with high-quality frames and lenses, we make the search and purchase process as seamless as possible.

After your purchase, your new eyeglasses will arrive right to your doorsteps in just a few business days. After you’ve received your glasses, try them on to ensure the frames fit properly. It’s important to note that getting used to new glasses, especially those with new lenses, may take a few days to get used to.

Be sure to take proper care of your eyeglasses, clean the lenses properly and keep them in their case when they’re not being worn. If you still have questions or need help, head to our Optical Centre and speak with one of our in-house Opticians. They’re here to answer any of your eyeglasses, lenses, and lens materials questions.

What are Mirrored Sunglasses?

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What are Mirrored Sunglasses?

What do mirrored sunglasses do? | Is mirrored better than polarised? | How to clean mirrored sunglasses | Where to buy mirrored sunglasses | Conclusion

Mirrored glasses shield your eyes, guarantee privacy, give you clear vision and, to top it all off, they look great!

If you are an adventure-seeker looking for a pair of sunglasses to make an effortless fashion statement without sacrificing functionality, mirrored sunglasses are the perfect choice for you! So, what are mirrored sunglasses?

Mirrored sunglasses, also known as reflective sunglasses, are one of the most popular styles of sunglasses on the market. They come in diverse colours and styles and are made with durable lenses with a reflective coating on the outside, giving them a mirrored look with major functional benefits.

What do mirrored sunglasses do?

When wearing mirrored sunglasses, you will not only look fashion-forward, but you will also experience the many benefits that the style offers, including:

1. Protection against UV Light –  Too much direct UV light on your eyes can cause damage, so it is important to protect your eyes as much as possible. Mirrored sunglasses offer great protection because the reflective surface on mirrored lenses has 10-60% higher sunlight reflection compared to normal tinted variations and can often be found with 100% UV protection. 

2. Reduced Glare – The glare from the sun can cause headaches for those with sensitive eyes, and for those doing water and snow sports, the glare can make performance much more difficult. Luckily, reflective sunglasses can reduce glares for a more comfortable outdoor experience, making the style a go-to for many athletes. They are also often used for snow goggles!

3. Brighter field of vision – Since mirrored sunglasses reflect light rather than absorb it, they offer brighter vision when wearing them. If you spend a lot of time in the sun, this benefit is great because it will ensure less strain on your eyes throughout the day.

4. Durability – The mirrored coating on the lenses is one of the most durable coatings available. Many brands also include a scratch-resistant layer, which protects against the wear and tear of everyday life. If you are looking for extra protection, be sure to check that this option is available before purchasing.

5. Anonymity – Say goodbye to awkward eye contact! While mirrored lenses can certainly make you stand out in the crowd, they can also significantly increase your privacy. The reflective lenses will hide your eyes, so you can go about your day feeling a bit more under the radar. 

6. Style – Mirrored sunglasses are also extremely stylish! With colours ranging from silver, pink, blue, green, gold, and more, there are limitless options to fit any personality. Brands such as Ray-Ban, Oakley and Carrera offer an endless number of colour and frame combinations for an instant boost in confidence and style.

DID YOU KNOW

Mirrored sunglasses are sometimes called “cop shades”. This stems from their popularity among US police officers.

Is mirrored better than polarised?

Mirrored and polarised sunglasses have many similar benefits as well as some differences, and the preference of one over the other totally depends on what you are looking for. Both offer great UV protection, reduce glare, and are suitable for spending excessive amounts of time in bright conditions. 

The most notable difference is that mirrored lenses are usually less costly and offer a more extensive array of lens colours. While polarised sunglasses often have grey, green, and amber tints, mirrored choices come in bright and bold colours. 

However, before you choose, you can discover the many benefits of polarised lenses to compare them and determine the best choice for you! If you are still undecided, you can combine both options for a polarised, mirrored pair of sunglasses.

How to clean mirrored sunglasses

As with all sunglasses, it is important to clean them thoroughly to ensure they last as long as possible. Mirrored lenses can appear smudged more easily than normal tinted lenses, so you should clean them often. 

While there are many methods online that explain how to remove scratches from sunglasses, we do not recommend trying this because it can ruin your lenses. Instead, it is best to get replacement lenses so your sunglasses last.

Where to buy mirrored sunglasses

Ready to try out a pair of mirrored sunglasses? At SmartBuyGlasses, we offer a vast selection of sunglasses with mirrored lenses. You are sure to find a pair that best suits you among our options from over 180 designer brands that feature bold colours, diverse frames, and unbeatable customer service.

Use our Virtual Try-On technology to make your purchase with 100% confidence. Try on an endless number of styles from the comfort of your own home. Once you choose, you can make the purchase and relax knowing we have a 100-day return policy, free shipping, and the best price guarantee.

Conclusion

Whether you are walking through the city streets, making waves during water sports, or feeling adventurous to try a new outdoor activity, mirrored sunglasses are the perfect choice to ensure style and success for any occasion.

Sunglasses Lens Colour Guide

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Sunglass Lens Colour Guide

Does the colour of sunglass lens matter? | Lens colour recommendation by weather | Lens colour recommendation by activity

By Corina Iatisin
Reviewed by Sharlene McKeeman FBDO
Sharlene is a qualified dispensing optician with over 7 years optical experience, a member of the Association of British Dispensing Opticians and registered with the General Optical Council.
When buying a new pair of sunglasses and choosing the colour of your lenses, remember that different lens colours have different purposes.

Depending on weather conditions or the activities that are part of your daily routine, the colour of your lenses can enhance the overall performance of your glasses. Most people choose lens colours based on aesthetics, but did you know that different lens colours serve different purposes? In this article, we will guide you through the different colour options, explain the difference between each lens colour and help you understand how to choose the best one to suit your needs.

In this article, we will guide you through the different color options, explain the difference between each lens color and help you understand how to choose the best one to suit your needs.

Does the color of sunglass lens matter?

Yes, colour has a noticeable effect on the sunglasses. Depending on your lifestyle, lens colour also affects your eye health during certain activities. This makes it essential for you to find a suitable lens compatible with your daily activities and needs.

What about mirrored lenses?

Mirrored sunglasses are the perfect stylish option to protect your eyes against UV rays. The fully reflective coating used for the lenses gives the mirrored look everyone loves these days. Combined with polarised lenses, they offer maximum protection against UV rays and increase clarity. Both polarised and mirrored lenses, either separate or combined, come in different colours. Below, we will be listing the most popular colours and what is the advantage of choosing each lens colour.

Lens colour guide

Gray and black lenses

Gray and black lenses are the best option if you’re looking for a neutral lens tint. These lenses are perfect for all weather conditions and are the top choice if you want to perceive colours in their purest form, even when wearing sunglasses.

Grey lenses are great at reducing the brightest glare and are perfect for outdoor activities and sports such as surfing, cycling, golfing and driving. If you’re looking for the everyday use type of tint, this is the one.

Amber and brown lenses

Amber and brown tints are extremely popular as they provide excellent depth perception. These lenses have a warm, reddish tone and are perfect for reducing glare, enhancing contrast, and helping maintain visual acuity. Amber and brown lens sunglasses are perfect for sunny days and outdoor activities such as fishing, shooting, tennis, or baseball.

Green lenses

Green Lenses are one of the trendiest when it comes to polarized or mirrored sunglasses. They are perfect for sunny days but also in low light conditions. Whether sunny, cloudy, or anything in between, green lenses will work amazingly well, giving you excellent vision and reducing glare.

Green lens sunglasses are one of the most popular ones for outdoor activities: no matter what sport you have on your agenda, these lenses will increase contrast and visual sharpness and enhance shadow.

Yellow lenses

Yellow lenses are more efficient in low-light environments like cloudy or rainy days. One of the benefits of using yellow lenses is that when playing sports, these lenses are great for focusing on moving objects. Another advantage is that when navigating, they are perfect in hazy or low-light conditions. Yellow lenses are also very popular amongst gamers as they filter blue light from computer screens and other screen devices.

DID YOU KNOW
Black lenses are perfect if you're looking for a neutral lens tint while brown lenses provide excellent depth perception. Blue lenses are suited for all water sports. For rainy days, yellow lenses are a must!

Blue lenses

Blue lenses are not only very trendy but also well-known for enhancing clarity and defining contours. These lenses improve colour perception and do wonders in low-light conditions. They’re suited well for all water sports, snow sports, and golf.

Red/pink lenses

Red and pink tints increase contrast by blocking blue light and enhancing depth perception. They are also soothing for the eyes and more comfortable than others for longer wear times. Pink and red lenses perform their best on extremely sunny days and snowy conditions.

Lens colour recommendation by weather

Lens colour recommendation by activity

Benefits of lens colours and tint

Now that you’ve read the guide to coloured lenses for sunglasses, choosing the next pair won’t be so daunting. Whether you need the perfect pair for your winter sports or the bright sunlight of summer, you’ll have the right tinted sunglasses to suit all your vision needs.

Sunglass Lens Colour Guide

Does the colour of sunglass lens matter? | Lens colour recommendation by weather | Lens colour recommendation by activity

By Corina Iatisin
Reviewed by Sharlene McKeeman FBDO
Sharlene is a qualified dispensing optician with over 7 years optical experience, a member of the Association of British Dispensing Opticians and registered with the General Optical Council.
When buying a new pair of sunglasses and choosing the colour of your lenses, remember that different lens colours have different purposes.

Depending on weather conditions or the activities that are part of your daily routine, the colour of your lenses can enhance the overall performance of your glasses. Most people choose lens colours based on aesthetics, but did you know that different lens colours serve different purposes? In this article, we will guide you through the different colour options, explain the difference between each lens colour and help you understand how to choose the best one to suit your needs.

Does the color of sunglass lens matter?

Yes, colour has a noticeable effect on the sunglasses. Depending on your lifestyle, lens colour also affects your eye health during certain activities. This makes it essential for you to find a suitable lens compatible with your daily activities and needs.

What about mirrored lenses?

Mirrored sunglasses are the perfect stylish option to protect your eyes against UV rays. The fully reflective coating used for the lenses gives the mirrored look everyone loves these days. Combined with polarised lenses, they offer maximum protection against UV rays and increase clarity. Both polarised and mirrored lenses, either separate or combined, come in different colours. Below, we will be listing the most popular colours and what is the advantage of choosing each lens colour.

Lens color guide

Gray and black lenses

Gray and black lenses are the best option if you’re looking for a neutral lens tint. These lenses are perfect for all weather conditions and are the top choice if you want to perceive colours in their purest form, even when wearing sunglasses.

Grey lenses are great at reducing the brightest glare and are perfect for outdoor activities and sports such as surfing, cycling, golfing and driving. If you’re looking for the everyday use type of tint, this is the one.

Amber and brown lenses

Amber and brown tints are extremely popular as they provide excellent depth perception. These lenses have a warm, reddish tone and are perfect for reducing glare, enhancing contrast, and helping maintain visual acuity. Amber and brown lens sunglasses are perfect for sunny days and outdoor activities such as fishing, shooting, tennis, or baseball.

Green lenses

Green Lenses are one of the trendiest when it comes to polarized or mirrored sunglasses. They are perfect for sunny days but also in low light conditions. Whether sunny, cloudy, or anything in between, green lenses will work amazingly well, giving you excellent vision and reducing glare.

Green lens sunglasses are one of the most popular ones for outdoor activities: no matter what sport you have on your agenda, these lenses will increase contrast and visual sharpness and enhance shadow.

Yellow lenses

Yellow lenses are more efficient in low-light environments like cloudy or rainy days. One of the benefits of using yellow lenses is that when playing sports, these lenses are great for focusing on moving objects. Another advantage is that when navigating, they are perfect in hazy or low-light conditions. Yellow lenses are also very popular amongst gamers as they filter blue light from computer screens and other screen devices.

DID YOU KNOW
Black lenses are perfect if you're looking for a neutral lens tint while brown lenses provide excellent depth perception. Blue lenses are suited for all water sports. For rainy days, yellow lenses are a must!

Blue lenses

Blue lenses are not only very trendy but also well-known for enhancing clarity and defining contours. These lenses improve colour perception and do wonders in low-light conditions. They’re suited well for all water sports, snow sports, and golf.

Red/pink lenses

Red and pink tints increase contrast by blocking blue light and enhancing depth perception. They are also soothing for the eyes and more comfortable than others for longer wear times. Pink and red lenses perform their best on extremely sunny days and snowy conditions.

Lens color recommendation by weather

Lens color recommendation by activity

Benefits of lens colors and tint

Now that you’ve read the guide to coloured lenses for sunglasses, choosing the next pair won’t be so daunting. Whether you need the perfect pair for your winter sports or the bright sunlight of summer, you’ll have the right tinted sunglasses to suit all your vision needs.

What Is Anisometropia?

Ask the Optician

ASK NOW

Ask the Optician

ASK NOW

What is Anisometropia?

What are the types of Anisometropia? | Is Antimetropia rare? | Symptoms of Anisometropia | What causes Anisometropia? |Treatment | Can Anisometropia be corrected with glasses?| Does Anisometropia get worse?

By Emma Moletto
Reviewed by Caitlyn Gibiault
Caitlyn Gibiault

Reviewed by

Caitlyn Gibiault
Aurora is a Digital Marketing Specialist for SmartBuyGlasses. She’s enthusiastic about supporting the marketing.
Anisometropia is a condition where the refractive error differs between two eyes. Read on to learn more about what anisometropia is.

If you are wondering, ‘what is Anisometropia?’ then you have come to the right place. The definition of anisometropia, more commonly known as vision imbalance, is a condition where your eyes have varying refractive power – i.e. your ability to focus is different in each eye. Anisometropia means you have a different prescription for each eye. 

Typically caused by unevenly sized or shaped eyes, anisometropia symptoms include asymmetric longsightedness or asymmetric shortsightedness. Anisometropia can result in an induced differential prism between the eyes as they move away from the centre of the correcting lens. Several studies show that only around 6% of young people have this refractive error, which generally occurs more frequently as they age.

What are the types of anisometropia?

1) Simple anisometropia

Simple anisometropia occurs when one eye has regular vision, but the other affected eye is short-sighted (myopia) or long-sighted (hyperopia). If you have one normal eye and one nearsighted eye, you have simple myopic anisometropia i.e. blurrier image in one eye.

2) Hyperopic anisometropia

Hyperopic anisometropia, also known as compound anisometropia, occurs when both eyes have the same refraction problem, but one eye is worse. If your pair of eyes are nearsighted, but one has a higher prescription than the other, you have compound myopic anisometropia. 

This can cause the eyes to be unable to work together and fuse the image into one, causing double vision. Double vision, also known as diplopia, causes people to see two of the same image.

3) Simple astigmatic anisometropia

Astigmatism is when the curvature of your eye’s cornea or lens is shaped like a football, which means your vision is blurred at all distances. The shape of your eye causes light to refract unevenly, which means the light changes direction when it enters your eye at an angle.

4) Compound astigmatic anisometropia

This refractive error means you have astigmatism in both eyes, but one eye requires much more correction. For compound astigmatic anisometropia, both eyes are either farsighted or nearsighted and require refraction correction.

5) Mixed astigmatic anisometropia

If you have this type of anisometropia, you have astigmatism in both eyes. However, one eye is farsighted, and the other is nearsighted.

6) Antimetropia

Another kind of anisometropia is a rare refractive condition called antimetropia, also known as mixed anisometropia. This condition is when one eye is myopic and the other is hyperopic, which means there is a significant difference in vision between the two eyes.

Is antimetropia rare?

Antimetropia is rare, but in most cases that it occurs is in post-cataract refractive surgery patients.

Symptoms of anisometropia

‘How do I know if I have anisometropia?’ You may be asking at this point. Anisometropia has a number of noticeable symptoms. These can include:

  • Amblyopia (also called lazy eye)
  • Frequent blurred vision
  • Diplopia (double vision) and dizziness
  • Strabismus (crossed eyes) 
  • Headaches
  • Difficulty with 3D vision, poor depth perception and loss of balance
  • Lack of coordination

If you suffer from any of these or other mild vision problems, you should ask your doctor for a comprehensive eye exam and diagnosis. An eye exam will generally include various tests to check the health of your eye and distinguish any diseases or conditions. Even if you do not have any symptoms, an eye screening is recommended for adults at the age of 40 to identify vision change and any signs of various sight impairments.

What causes anisometropia?

Most people with ‘normal vision’ can experience up to a 5% difference in the refractive power of each eye. However, those with a larger difference in refractive power (5-20%) will experience uneven vision, which can cause a lack of coordination.

There is no definitive answer as to what causes refractive errors that lead to developing anisometropia. There are likely genetic and environmental risk factors for this, such as defects in the eye at birth or an uneven size of the two eyes. Other potential causes can include injury to the eye, eye trauma and refractive surgery.

DID YOU KNOW?
Anisometromia means having a large difference in refractive power of each eye, between 5 and 20%. This causes uneven vision, which leads to lack of coordination.

Anisometropia after cataract surgery

Cataract surgery is when the natural lens of an eye is replaced with an artificial one to help improve visual stimulation without wearing glasses or stopping cataract development. The majority of people will copy very well following cataract surgery. However, some people will experience symptoms of anisometropia in more severe cases.

Anisometropia in children

Anisometropia can result in anisometropic amblyopia (lazy eye) in young children. Amblyopia can occur in children because the brain tells the eyes to focus the same amount in each eye. However, if the eyes don’t have the same refractive power, one eye will produce a blurry image compared to the other eye. 

Furthermore, if your child does not have a wandering or crossing eye (strabismus), it can be difficult to determine the condition. Young children often do not present outward signs of issues, as they function well using one eye, so it is more difficult to notice. 

However, older children are likely to complain. We recommend booking your child an eye test to diagnose the condition and to be treated.

Treatment

There are different methods of treatment for anisometropia, which vary from person to person. It is important to consult your eye doctor to understand and seek treatment. Treatments you may be offered include:

  • Corrective lenses (wear glasses or contact lenses) can be worn to improve overall vision and produce a clear image.
  • Special filters in glasses help train the brain to use the weaker eye.
  • Covering the dominant eye with an eye patch (the same treatment for a lazy eye), also known as patching, helps the brain use the neglected eye.
  • Eye drops can blur the vision in the dominant eye, which helps force the brain to use the neglected eye.
  • LASIK is a common corrective surgery for treating anisometropia, depending on your prescription.

Can anisometropia be corrected with glasses?

If you’re asking, ‘can anisometropia be corrected?’, you’ll be pleased to hear that there are treatment options. One kind of treatment for anisometropia is corrective lenses. While you are correcting short-sightedness in both eyes using prescription glasses that are the same over each eye, anisometropia requires a different kind of lens to correct it.

When deciding which route to take when it comes to eyewear, consider the wide range of options available:

  1. Prescription glasses with bifocal or progressive addition lenses (PALs) are a common option for treating anisometropia symptoms and are often the first step. You can get an up-to-date spectacle prescription from your optician or use our Lens Scanner to reveal your current prescription.
  2. Bifocal lenses are glasses constructed with two points of focus, which simultaneously correct refractive errors for both distance and near vision.
  3. Progressive lenses are similar to bifocal lenses but offer a gradual transition between the two prescription lenses, so there is no visible line on your prescription spectacles.
  4. Reading glasses are another option for anisometropia symptoms. You can have these glasses fitted with your unique prescription so you can wear these glasses while you read or work. There are also non-prescription reading glasses that you can typically try out and purchase in high-street shops.

Severe Anisometropia

A patient with severe anisometropia is not generally not recommended to wear glasses. Glasses have a magnification effect that can cause a large difference in the image size seen by each eye. Therefore, wearing glasses with severe anisometropia can prevent exceptional binocular vision. Therefore, those with severe anisometropia are generally advised to wear contact lenses instead, as they ensure optimal vision in both eyes.

Anisometropia treatment: contact lenses

Additionally, there is a range of contact lenses available to treat anisometropia symptoms. Multifocal are available in both gas-permeable and soft lens material, depending on your preference.  Another possibility is monovision contact lenses, where you use a distance vision lens for one eye and a different contact lens for close-up usage in the other. The type a patient chooses depends on the type of anisometropia and the spectacle prescription.

How serious is anisometropia?

The severity of anisometropia varies in adults and children. It is essential to treat anisometropia as soon as it is diagnosed and not ignore it. If anisometropia is left untreated, the brain can select the better eye that presents a clearer image, thus ignoring the other eye. This can then lead to dependence on the stronger eye over exam time.

Eventually, the weaker eye will progressively worsen, so it’s important to get an appointment with your ophthalmologist before the refractive error becomes acute. At your appointment, your eye doctor will recommend the best eye treatment going forward.

Does anisometropia get worse?

In some cases, anisometropia can worsen. Anisometropia shows an exponential increase in prevalence with increasing age in life. Furthermore, if you do not treat your anisometropia, this can worsen the condition. Therefore, it’s important to ensure that you seek the correct treatment from your eye doctor before the condition can develop or lead to complications.

What Is Anisometropia?

What are the types of Anisometropia? | Is Antimetropia rare? | Symptoms of Anisometropia | What causes Anisometropia? |Treatment | Can Anisometropia be corrected with glasses?| Does Anisometropia get worse?

By Caitlin Biwer
Reviewed by Beck Jinette
Beck Jinette

Reviewed by

Beck Jinette
Beck has over 17 years of experience in eye care, holding her Certificate IV in Dispensing in Australia.
Anisometropia is a condition where the refractive error differs between two eyes. Read on to learn more about what Anisometropia is.

If you are wondering, ‘what is Anisometropia?’ then you have come to the right place. The definition of anisometropia, more commonly known as vision imbalance, is a condition where your eyes have varying refractive power – i.e. your ability to focus is different in each eye.

Anisometropia means you have a different prescription for each eye. 

Typically caused by unevenly sized or shaped eyes, anisometropia symptoms include asymmetric longsightedness or asymmetric shortsightedness.

Anisometropia can result in an induced differential prism between the eyes as they move away from the centre of the correcting lens. Several studies show that only around 6% of young people have this refractive error, which generally occurs more frequently as they age.

What are the types of anisometropia?

There are different types of anisometropia, with patients being affected differently by each of them. However, most types of anisometropia share the same symptoms.

1) Simple anisometropia

Simple anisometropia occurs when one eye has regular vision, but the other affected eye is short-sighted (myopia) or long-sighted (hyperopia).

If you have one normal eye and one nearsighted eye, you have simple myopic anisometropia i.e. blurrier image in one eye.

2) Hyperopic anisometropia

Hyperopic anisometropia, also known as compound anisometropia, occurs when both eyes have the same refraction problem, but one eye is worse.

If your pair of eyes are nearsighted, but one has a higher prescription than the other, you have compound myopic anisometropia.

This can cause the eyes to be unable to work together and fuse the image into one, causing double vision. Double vision, also known as diplopia, causes people to see two of the same image.

4) Simple astigmatic anisometropia

Astigmatism is when the curvature of your eye’s cornea or lens is shaped like a football, which means your vision is blurred at all distances.

The shape of your eye causes light to refract unevenly, which means the light changes direction when it enters your eye at an angle.

5) Compound astigmatic anisometropia

This refractive error means you have astigmatism in both eyes, but one eye requires much more correction. For compound astigmatic anisometropia, both eyes are either farsighted or nearsighted and require refraction correction.

6) Mixed astigmatic anisometropia

If you have this type of anisometropia, you have astigmatism in both eyes. However, one eye is farsighted, and the other is nearsighted.

7) Antimetropia

Another kind of anisometropia is a rare refractive condition called antimetropia, also known as mixed anisometropia.

This condition is when one eye is myopic and the other is hyperopic, which means there is a significant difference in vision between the two eyes.

Is antimetropia rare?

Antimetropia is rare, but in most cases that it occurs is in post-cataract refractive surgery patients.

Symptoms of anisometropia

‘How do I know if I have anisometropia?’ You may be asking at this point. Anisometropia has a number of noticeable symptoms. These can include: 

  • Amblyopia (also called lazy eye)
  • Frequent blurred vision
  • Diplopia (double vision) and dizziness
  • Strabismus (crossed eyes) 
  • Headaches
  • Difficulty with 3D vision, poor depth perception and loss of balance
  • Lack of coordination

If you suffer from any of these or other mild vision problems, you should ask your doctor for a comprehensive eye exam and diagnosis. An eye exam will generally include various tests to check the health of your eye and distinguish any diseases or conditions. Even if you do not have any symptoms, an eye screening is recommended for adults at the age of 40 to identify vision change and any signs of various sight impairments.

What causes anisometropia?

Most people with ‘normal vision’ can experience up to a 5% difference in the refractive power of each eye.

However, those with a larger difference in refractive power (5-20%) will experience uneven vision, which can cause a lack of coordination.

There is no definitive answer as to what causes refractive errors that lead to developing anisometropia. There are likely genetic and environmental risk factors for this, such as defects in the eye at birth or an uneven size of the two eyes.

Other potential causes can include injury to the eye, eye trauma and refractive surgery.

DID YOU KNOW?
Anisometromia means having a large difference in refractive power of each eye, between 5 and 20%. This causes uneven vision, which leads to lack of coordination.

Anisometropia after cataract surgery

Cataract surgery is when the natural lens of an eye is replaced with an artificial one to help improve visual stimulation without wearing glasses or stopping cataract development.

The majority of people will copy very well following cataract surgery. However, some people will experience symptoms of anisometropia in more severe cases.

Anisometropia in children

Anisometropia can result in anisometropic amblyopia (lazy eye) in young children. Amblyopia can occur in children because the brain tells the eyes to focus the same amount in each eye. However, if the eyes don’t have the same refractive power, one eye will produce a blurry image compared to the other eye. 

Furthermore, if your child does not have a wandering or crossing eye (strabismus), it can be difficult to determine the condition. Young children often do not present outward signs of issues, as they function well using one eye, so it is more difficult to notice. 

However, older children are likely to complain. We recommend booking your child an eye test to diagnose the condition and to be treated.

Treatment

There are different methods of treatment for anisometropia, which vary from person to person. It is important to consult your eye doctor to understand and seek treatment. Treatments you may be offered include:

  • Corrective lenses (wear glasses or contact lenses) can be worn to improve overall vision and produce a clear image.
  • Special filters in glasses help train the brain to use the weaker eye.
  • Covering the dominant eye with an eye patch (the same treatment for a lazy eye), also known as patching, helps the brain use the neglected eye.
  • Eye drops can blur the vision in the dominant eye, which helps force the brain to use the neglected eye.
  • LASIK is a common corrective surgery for treating anisometropia, depending on your prescription.

Can anisometropia be corrected with glasses?

If you’re asking, ‘can anisometropia be corrected?’, you’ll be pleased to hear that there are treatment options. One kind of treatment for anisometropia is corrective lenses. While you are correcting short-sightedness in both eyes using prescription glasses that are the same over each eye, anisometropia requires a different kind of lens to correct it.

When deciding which route to take when it comes to eyewear, consider the wide range of options available: 

  1. Prescription glasses with bifocal or progressive addition lenses (PALs) are a common option for treating anisometropia symptoms and are often the first step. You can get an up-to-date spectacle prescription from your optician or use our Lens Scanner to reveal your current prescription.
  2. Bifocal lenses are glasses constructed with two points of focus, which simultaneously correct refractive errors for both distance and near vision.
  3. Progressive lenses are similar to bifocal lenses but offer a gradual transition between the two prescription lenses, so there is no visible line on your prescription spectacles.
  4. Reading glasses are another option for anisometropia symptoms. You can have these glasses fitted with your unique prescription so you can wear these glasses while you read or work. There are also non-prescription reading glasses that you can typically try out and purchase in high-street shops.

Severe anisometropia

A patient with severe anisometropia is not generally not recommended to wear glasses. Glasses have a magnification effect that can cause a large difference in the image size seen by each eye.

Therefore, wearing glasses with severe anisometropia can prevent exceptional binocular vision. Therefore, those with severe anisometropia are generally advised to wear contact lenses instead, as they ensure optimal vision in both eyes.

Anisometropia treatment: contact lenses

Additionally, there is a range of contact lenses available to treat anisometropia symptoms. Multifocal are available in both gas-permeable and soft lens material, depending on your preference. 

Another possibility is monovision contact lenses, where you use a distance vision lens for one eye and a different contact lens for close-up usage in the other. The type a patient chooses depends on the type of anisometropia and the spectacle prescription.

How serious is anisometropia?

The severity of anisometropia varies in adults and children. It is essential to treat anisometropia as soon as it is diagnosed and not ignore it.

If anisometropia is left untreated, the brain can select the better eye that presents a clearer image, thus ignoring the other eye. This can then lead to dependence on the stronger eye over exam time.

Eventually, the weaker eye will progressively worsen, so it’s important to get an appointment with your ophthalmologist before the refractive error becomes acute.

At your appointment, your eye doctor will recommend the best eye treatment going forward.

Does anisometropia get worse?

In some cases, anisometropia can worsen. Anisometropia shows an exponential increase in prevalence with increasing age in life.

Furthermore, if you do not treat your anisometropia, this can worsen the condition.

Therefore, it’s important to ensure that you seek the correct treatment from your eye doctor before the condition can develop or lead to complications.

Crazed Lenses

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Crazed Lenses

What are crazed lenses? | What causes it? | Can Transitions craze? Heat damage and crazing | How to spot it | How to prevent it | How to fix it

By Claire Capuano
Reviewed by Caitlyn Gibiault
Caitlyn Gibiault

Reviewed by

Caitlyn Gibiault
Aurora is a Digital Marketing Specialist for SmartBuyGlasses. She’s enthusiastic about supporting the marketing.
Find out what crazed lenses are and how to prevent them from getting in the way of clear vision.

If you notice tiny cracks on your glasses’ lenses, the anti-reflective coating (AR coating) has probably begun to craze. Crazing is a web of tiny cracks that can appear on the lenses of eyeglasses which have an anti-reflective coating. When crazing or lens cloudiness occurs, your glasses become less effective as your field of vision may appear blurry.

What is crazing on my eyeglasses lenses?

Lens crazing is the spider web of fine cracks that can occur when your glasses’ special lens coatings are damaged by improper care or exposure to extreme temperatures. Anti-reflective lenses and polarised lenses have a lot of benefits. These coated lenses block glare and reflections, ease eye strain and improve vision. It is important to note that while these lenses are an excellent option for many, the coatings are susceptible to crazing, requiring proper care to prevent it.

What causes crazing on lenses?

There are multiple factors that can cause lenses to craze. An unavoidable cause is the improper application of an anti-reflective coating in the lab. In addition, cleaning your eyeglasses with rubbing alcohol, window cleaner, or another harsh cleaner may lead to crazing. As with any pair of eyeglasses or sunglasses, it is essential to clean your glasses properly.

Extreme or quick temperature changes may cause the coated lenses to expand and contract leading to crazed lenses. Wearing your glasses while doing activities near high temperatures, such as grilling, tending a fire, or welding may have the same effect. Crazing or lens cloudiness may also appear with no apparent cause. In this situation, the crazing may be the result of a manufacturing defect.

DID YOU KNOW?
Lens crazing are fine cracks that can occur when your glasses' special lens coatings are damaged. It's easy to prevent if you take proper care of them and avoid exposure to extreme temperatures.

Is it possible for Transitions® lenses to craze?

Transitions® glasses and other brands of photochromic lenses can become crazed if they are coated with an anti-reflective coating. Crazing on Transitions® lenses is often caused by exposure to high heat. This doesn’t mean you should avoid wearing your glasses, but be mindful of how and where you wear them. Avoid leaving glasses sitting outside on a sunny day or wearing them around extreme heat.

How can heat damage eyeglass lenses?

High heat exposure can damage glasses and lenses in several ways. First, heat can cause the anti-glare coating and lenses to expand at different rates. These contractions create eyeglass crazing. Heat can also damage glasses by softening and warping plastic frames and lenses and damaging the film on polarised sunglasses.

Heat is not something we can always avoid. But to protect your glasses from heat damage, do not leave your glasses in a hot car and avoid wearing glasses near extreme heat. If your optician plans to use a frame warmer to adjust your glasses to better fit your face, speak to them about the possibility of crazing.

How to spot crazing

If you suddenly notice your vision is not as great in your relatively new glasses, crazing may be the cause. Check the lenses for hairline cracks, and contact the eye doctor or optical store where you purchased the glasses to find a solution and restore your vision.

How to prevent crazing on eyeglasses

It is important to take proper care of your glasses. By doing so, you can prevent crazing and surface scratching. When your glasses are dirty, do not use hot, heavily soapy water, but instead rinse them with lukewarm water to remove any dirt or debris. A microfiber or lint-free cotton towel and a lens spray designed specifically for cleaning eyeglasses are also good solutions. Remember to be careful and avoid high heat, as this creates crazing.

How can I fix crazed lenses?

Some eye care professionals and optical laboratories have access to stripping solutions that can be used to strip the anti-reflective coating from the lenses and remove crazing. SmartBuyGlasses does not offer this service and it is only sometimes an option, so speak to your optician to see if this is a solution for you. Results will vary based on the lens and coating used and it may not be possible for the AR coating to be stripped from polycarbonate lenses or high-index lenses.

Check to see if your lenses are still under warranty; some warranties cover crazing caused by a manufacturing defect. Your warranty will not cover crazing caused by mistake; for example, leaving glasses in a hot car. At SmartBuyGlasses, all eyewear comes with a 24-month warranty. If your crazing is caused by a manufacturer’s defect, it will likely appear within the first six months. Head to our FAQ to read more about what’s covered under warranty.

Some eye care professionals and optical laboratories have access to stripping solutions that can be used to strip the anti-reflective coating from the lenses and remove crazing.

SmartBuyGlasses does not offer this service and it is only sometimes an option, so speak to your optician to see if this is a solution for you. Results will vary based on the lens and coating used and it may not be possible for the AR coating to be stripped from polycarbonate lenses or high-index lenses.

Check to see if your lenses are still under warranty; some warranties cover crazing caused by a manufacturing defect. Your warranty will not cover crazing caused by mistake; for example, leaving glasses in a hot car.

At SmartBuyGlasses, all eyewear comes with a 24-month warranty. If your crazing is caused by a manufacturer’s defect, it will likely appear within the first six months. Head to our FAQ to read more about what’s covered under warranty.

Lens crazing

Don’t avoid an anti-reflective coating because of crazed lens potential. An anti-reflective coating has many benefits. To avoid crazing, keep your eyeglass lenses safe, avoid wearing your glasses near high heat, don’t leave glasses in a hot car and remove dirt and debris correctly.

While crazed lenses may result from a manufacturer error, more commonly, it is human error. Don’t let crazing happen; pay attention to your eyeglass lenses and always take special care of them.

Lowest Prescription for Contacts

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Lowest Prescription for Contacts

Is a glasses prescription the same? | How to read your prescription | Numbers in the prescription | How long does it last? | How low does it go? | Strongest prescription | Advantages

By Claire Capuano
Reviewed by Beck Jinette
Beck Jinette

Reviewed by

Beck Jinette
Beck has over 17 years of experience in eye care, holding her Certificate IV in Dispensing in Australia.
Contact lenses are becoming more advanced and available for those in need of vision correction for nearsightedness, farsightedness, or astigmatism.

Contact lenses have become much more comfortable, breathable and versatile since they were first designed in the 19th century. The earliest versions were blown from glass, so it’s no wonder they were less popular than they are now. Today, contact lenses are thin, plastic lenses used for vision correction. Contact lenses differ from glasses as they are worn directly on the cornea, the front surface of the eye. Contact lenses adhere to the shape of the eye, allowing a wider field of vision and fewer distortions or obstacles than prescription glasses.

Contact lenses have become much more comfortable, breathable and versatile since they were first designed in the 19th century. The earliest versions were blown from glass, so it’s no wonder they were less popular than they are now. Today, contact lenses are thin, plastic lenses used for vision correction.

Contact lenses differ from glasses as they are worn directly on the cornea, the front surface of the eye. Contact lenses adhere to the shape of the eye, allowing a wider field of vision and fewer distortions or obstacles than prescription glasses.

Are glasses prescriptions and contact lens prescriptions the same?

The lens power in glasses and contact lenses can correct nearsightedness, farsightedness, or astigmatism. Just as contact lenses and glasses are not worn in the same way, their prescriptions also differ. Glasses generally rest about 12 mm from the eyes, whereas contacts are worn directly on the eyes and have a much smaller surface area. The distance from the eye directly impacts the difference in lens power.

A prescription for eyeglasses and contact lenses will require separate eye exams and measurements from your optometrist as the prescriptions will differ. Additionally, with so many types of contact lenses available it is important a correct fit and brand is prescribed. Ordering contact lenses with the wrong prescription can lead to symptoms such as blurry vision, headaches, eye strain or fatigue and eye pain (AAO, 2012).

The lens power in glasses and contact lenses can correct nearsightedness, farsightedness, or astigmatism. Just as contact lenses and glasses are not worn in the same way, their prescriptions also differ.

Glasses generally rest about 12 mm from the eyes, whereas contacts are worn directly on the eyes and have a much smaller surface area. The distance from the eye directly impacts the difference in lens power.

A prescription for eyeglasses and contact lenses will require separate eye exams and measurements from your optometrist as the prescriptions will differ. Additionally, with so many types of contact lenses available it is important a correct fit and brand is prescribed.

Ordering contact lenses with the wrong prescription can lead to symptoms such as blurry vision, headaches, eye strain or fatigue and eye pain (AAO, 2012).

How to read a contact prescription

If you’ve received an eye exam, got your new prescription and are ready to buy contact lenses online but need clarification, you’re not alone! Codes like “D, CYL and AXIS” are all over your prescription, but what do they mean?

Many people need different levels of vision correction in each eye, so a contact lens prescription may have two sets of numbers—one for your right eye and one for your left eye. OD, oculus dexter, refers to your right eye, while OS, oculus sinister, refers to your left eye.

  • Base Curve (BC) determines the type of fit required for the lens to meet the curve of your eye. It is measured in millimeters (mm) and aligns with the curvature of your eye.
  • Power (PWR)/Sphere (SPH) refers to the strength of your prescription. You will see a plus sign (+) or a minus sign (-) followed by a number. If you are farsighted, your figure will begin with a plus sign. If you are nearsighted, it will start with a minus sign.
  • Diameter (DIA) is the entire width of your contact lenses. Also measured in millimeters, the higher the base curve, the flatter the cornea’s curvature.

If you need astigmatism correction, you will have two additional terms and numbers on the prescription. For those with astigmatism, you will need toric lenses

  • Cylinder (CYL) represents the severity of your astigmatism and the additional visual requirements needed for vision correction.
  • Axis (AX) is measured in degrees and tells you where and how your astigmatism is located and oriented on your eye. 

For those with presbyopia or who need multifocal lenses, you will notice one or both of the following on your prescription.

  • Addition (ADD) determines the amount of correction you need to be able to see clearly at a close distance.
  • Dominant (D/N) identifies your dominant (D) and non-dominant (N) eye. The dominant eye usually prioritises distance vision, while the non-dominant eye prioritises near vision. 

Your prescription will also include a brand of contact lenses. Contact lens boxes will include most of the prescription details on them as well. Different contact lens brands have distinct features and measurements, so it is important only to order the brand prescribed. If you want or need to switch brands, it is essential to let your eye doctor know.

If you’ve received an eye exam, got your new prescription and are ready to buy contact lenses online but need clarification, you’re not alone! Codes like “D, CYL and AXIS” are all over your prescription, but what do they mean?

Many people need different levels of vision correction in each eye, so a contact lens prescription may have two sets of numbers—one for your right eye and one for your left eye. OD, oculus dexter, refers to your right eye, while OS, oculus sinister, refers to your left eye.

  • Base Curve (BC) determines the type of fit required for the lens to meet the curve of your eye. It is measured in millimeters (mm) and aligns with the curvature of your eye.
  • Power (PWR)/Sphere (SPH) refers to the strength of your prescription. You will see a plus sign (+) or a minus sign (-) followed by a number. If you are farsighted, your figure will begin with a plus sign. If you are nearsighted, it will start with a minus sign.
  • Diameter (DIA) is the entire width of your contact lenses. Also measured in millimeters, the higher the base curve, the flatter the cornea’s curvature.

 

If you need astigmatism correction, you will have two additional terms and numbers on the prescription. For those with astigmatism, you will need toric lenses.

  • Cylinder (CYL) represents the severity of your astigmatism and the additional visual requirements needed for vision correction.
  • Axis (AX) is measured in degrees and tells you where and how your astigmatism is located and oriented on your eye. 

 

For those with presbyopia or who need multifocal lenses, you will notice one or both of the following on your prescription.

  • Addition (ADD) determines the amount of correction you need to be able to see clearly at a close distance.
  • Dominant (D/N) identifies your dominant (D) and non-dominant (N) eye. The dominant eye usually prioritises distance vision, while the non-dominant eye prioritises near vision. 

 

Your prescription will also include a brand of contact lenses. Contact lens boxes will include most of the prescription details on them as well. Different contact lens brands have distinct features and measurements, so it is important only to order the brand prescribed. If you want or need to switch brands, it is essential to let your eye doctor know.

DID YOU KNOW?
A glasses and contact lens prescription are not the same, it is important to get an updated eye exam before purchasing contacts.

What do the numbers mean in a contact prescription?

If you understand what the codes mean, you may still wonder what the numbers mean. BC and DIA will not be present on your glasses prescription, as they refer only to a contact lens prescription. Measured in millimetres, the BC is always a number between 8 and 9 and will align with the curvature of your eye. DIA is typically between 14 and 14.5 millimetres and determines the entire width of your contact lens.

The PWR or SPH (prescription strength) is measured in increments of 0.25 diopters. The further from zero, the stronger the vision correction needed. A negative number, -1.00, indicates nearsightedness. A positive number, for example, +2.00, indicates farsightedness.

CYL is always a negative number measured in increments of 0.25, showing the amount of astigmatism. AX is a number between 0 and 180 degrees, referring to the angle of correction needed. For those with presbyopia, the ADD figure is a positive number between 0.50 and 3.00.

If you still need help reading and understanding your contact lens prescription, contact your optometrist or head to our Optical Centre to speak with one of our opticians.

If you understand what the codes mean, you may still wonder what the numbers mean. BC and DIA will not be present on your glasses prescription, as they refer only to a contact lens prescription.

Measured in millimetres, the BC is always a number between 8 and 9 and will align with the curvature of your eye. DIA is typically between 14 and 14.5 millimetres and determines the entire width of your contact lens.

The PWR or SPH (prescription strength) is measured in increments of 0.25 diopters. The further from zero, the stronger the vision correction needed. A negative number, -1.00, indicates nearsightedness. A positive number, for example, +2.00, indicates farsightedness.

CYL is always a negative number measured in increments of 0.25, showing the amount of astigmatism. AX is a number between 0 and 180 degrees, referring to the angle of correction needed. For those with presbyopia, the ADD figure is a positive number between 0.50 and 3.00.

If you still need help reading and understanding your contact lens prescription, contact your optometrist or head to our Optical Centre to speak with one of our opticians.

How long is a contact prescription good for?

Most contact lens prescriptions expire within one to two years of your last eye exam. Once your prescription has expired, it is important to see your eye doctor for a new contact lens prescription. Wearing the wrong prescription contacts may create discomfort and lead to further vision problems.

How low do contact prescriptions go?

Contact lenses are becoming more and more diverse and available for those in need of vision correction. Contact lenses are now offered at the lowest prescription of -0.25/+0.25. Many people neglect to wear their low-prescription eyeglasses because of inconvenience, but wearing low-prescription contacts might be a good solution as they can be considered less obstructive.

Contact lenses don’t interfere with equipment such as helmets, hats, or goggles. During sports or exercise, contact lenses don’t get in the way. They’re not at risk of falling off or breaking. Contact lenses are not usually affected by weather as they don’t fog up in the cold.

Correcting your vision and protecting your eyes at any prescription level is important. If you’re avoiding your glasses for ease and convenience, speak with your eye doctor about receiving an eye exam and switching to contact lenses.

What is the strongest contact lens prescription?

Advances in contact lens technology have made it so that contact lenses can be worn safely and comfortably by those with high-power prescriptions. Standard contact lenses are readily available in prescriptions from -12.00 to +8.00, and cylinder powers up to -2.25 or -2.75 for astigmatism correction. Extended-range lenses are also available with spherical powers of +15.00D to –20.00D and up to –5.75D in cylindrical powers (Contact Lens Spectrum, 2016).

Soft contact lenses with high powers have thicker edges compared to low-powered ones. These thicker edges may be less comfortable to wear and cause more dry eyes. Many people with high-power prescriptions choose RGP lenses (rigid gas permeable or ‘hard’) as they are smaller and thinner than a soft lens. RGP lenses don’t bend like soft lenses, but they let oxygen through so your eyes can breathe.

Advances in contact lens technology have made it so that contact lenses can be worn safely and comfortably by those with high-power prescriptions.

Standard contact lenses are readily available in prescriptions from -12.00 to +8.00, and cylinder powers up to -2.25 or -2.75 for astigmatism correction. Extended-range lenses are also available with spherical powers of +15.00D to –20.00D and up to –5.75D in cylindrical powers (Contact Lens Spectrum, 2016).

Soft contact lenses with high powers have thicker edges compared to low-powered ones. These thicker edges may be less comfortable to wear and cause more dry eyes. Many people with high-power prescriptions choose RGP lenses (rigid gas permeable or ‘hard’) as they are smaller and thinner than a soft lens. RGP lenses don’t bend like soft lenses, but they let oxygen through so your eyes can breathe.

Advantages of contact lenses

While contact lenses might not be for everyone, many contact lens wearers won’t go back to standard eyeglasses. Contacts conform to your eye, reducing distortion and obstructions. They won’t stop you from playing sports or competing in outdoor activities. Contact lenses are also available in coloured lenses, so you can experiment with your eye colour.

With varying contact lens power, affordable contact lenses and varying lens materials, there are contact lenses for everyone. Based on your lifestyle, you can speak with your eye doctor about purchasing daily disposable lenses, weekly or monthly lenses.

Contact lenses prescription

Buying contact lenses doesn’t have to be confusing. They’re an excellent alternative for those looking to ditch their eyeglasses. It is important to remember that glasses and contact lens prescriptions are different. Do not assume that any numbers on your glasses prescription will match your contact lens prescription. If you want to try contact lenses, schedule an eye exam to determine what you need and what lens type will best suit you. 

For people with vision problems, contacts are an effective, almost invisible tool. The thin lenses correct vision problems including nearsightedness, farsightedness and astigmatism. You can even wear contacts if you have presbyopia and need bifocals. As technology and medicine continue to advance, contact lenses are only improving. Speak with your eye doctor about getting a prescription for contact lenses and start seeing clearer and more comfortably. 

Buying contact lenses doesn’t have to be confusing. They’re an excellent alternative for those looking to ditch their eyeglasses. It is important to remember that glasses and contact lens prescriptions are different.

Do not assume that any numbers on your glasses prescription will match your contact lens prescription. If you want to try contact lenses, schedule an eye exam to determine what you need and what lens type will best suit you. 

For people with vision problems, contacts are an effective, almost invisible tool. The thin lenses correct vision problems including nearsightedness, farsightedness and astigmatism. You can even wear contacts if you have presbyopia and need bifocals.

As technology and medicine continue to advance, contact lenses are only improving. Speak with your eye doctor about getting a prescription for contact lenses and start seeing clearer and more comfortably. 

REFERENCES

  1. American Academy of Ophthalmology. (2012). Can outdated contact lenses harm your eyes? [Online]. Available at: https://www.aao.org/eye-health/ask-ophthalmologist-q/wearing-outdated-contacts 
  2. Contact Lens Spectrum. (2016). Specialty and Custom Soft Contact Lenses. [Online]. Available at: https://www.clspectrum.com/issues/2016/december-2016/specialty-and-custom-soft-contact-lenses 

What Is Rimless Glasses – Everything You Need to Know

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What Is Rimless Glasses - Everything You Need to Know

What are rimless glasses? | Pros and Cons | With prescription | Lens material | Cost | How to adjust Rimless glasses | Alternatives

By Emma Moletto
Reviewed by Sharlene McKeeman FBDO
Sharlene is a qualified dispensing optician with over 7 years optical experience, a member of the Association of British Dispensing Opticians and registered with the General Optical Council.
Are frameless eyeglasses right for you? Find out!

We know the endless choices of frames are overwhelming, so why not make it easier and try a pair of rimless glasses? This article will cover what rimless glasses are and what you need to know before buying your first pair. 

Discover the pros and cons of wearing rimless glasses and whether they are an affordable alternative to prescription glasses for you.

What are rimless glasses?

Rimless glasses, or frameless eyeglasses, are glasses with no frame. The nose bridge connects the lenses, and the temples are directly attached to the lenses. 

In the late 19th and early 20th centuries, the first widely available version of rimless glasses came as prince-nez. These glasses pinched the nose and didn’t have earpieces. Manufacturers went to a great extent to keep these glasses secure on the nose. Around World War 1, a version with two temple arms and a nose bridge emerged.

 In the coming decades, various other structural improvements were implemented, including nose pads, changing the type of screws and different style variations. Rimless glasses help bring more focus to your face and allow for a subtle look. 

In the 21st century, frameless glasses are usually made with quality, lightweight and durable materials, such as titanium, as they are more delicate than standard glasses.

What are the pros and cons of rimless glasses?

Like any pair of glasses, rimless glasses have features that appeal to some people rather than others. Let’s look into why rimless glasses may or may not be for you.

What are the advantages of rimless eyeglasses?

  • Cost-effective
  • Subtle – nearly invisible on your face
  • Lightweight
  • You can look fashionable, professional, or casual, depending on the model

What are the disadvantages of rimless glasses?

  • Delicate and more prone to breakage since there’s no frame
  • Not for those who want their glasses to show off their vibrant personalities
  • Not available in all frames styles, for example, not as cat-eye glasses
  • Not available for all prescription lenses (see next paragraph)

Consider the pros and cons to decide whether rimless eyeglasses are for you. If you like them and need prescription lenses, then let’s find out if frameless eyeglasses are suitable for your vision.

Can I get rimless glasses with a high prescription?

Prescription rimless eyeglasses are not suitable for high prescriptions. Indeed, it is not recommended to wear your frameless glasses if your prescription is higher than -6.00. 

Strong prescriptions have thicker lenses and need extra support, like semi-rimeless and full-rim glasses in plastic or metal frames. However, depending on the lens material and your prescription details, you might get away with frameless glasses, even with a high index. Consult our certified online opticians for more advice. 

Progressive lenses can be fitted to a rimless pair of glasses and work as effectively as other progressive prescription glasses (always depending on your prescription). The same goes for tinted lenses and transitions. 

You should have a regular eye test to have an updated version of your prescription. If you are unsure what your existing prescription is before buying a pair of rimless glasses, you can use our Lens Scanner tool and get the result straight to your phone.

Best lens material for rimless glasses

The lenses in frameless eyeglasses are more exposed than full or semi-rimmed glasses, so they’re more prone to breakage. Therefore, rimless glasses depend on certain types of lens materials. 

Standard plastic or glass lenses work best with full-rimmed glasses as they are fully covered. The lenses are more exposed in rimless glasses, and with glass or standard plastic lenses, they’d lack impact resistance. 

So, frameless eyeglasses depend on the quality and robust lens materials, and with high prescriptions, thicker lenses require more stability. 

High-quality plastic lenses, like Arise Collective™ Clarity Lenses  are a good option for frameless glasses with low prescriptions. They are lighter and thinner than standard glasses lenses and also offer UV protection and impact resistance. 

Higher prescriptions may require thicker lenses, which mean a heavier pair of glasses. High-index lenses are a great way to avoid heavy rimless glasses since they offer superior impact resistance. 

DID YOU KNOW?
The best lens material for rimless glasses is high-quality plastic, such as our Arise Collective™ Clarity Lenses . With higher prescriptions, it is recommended to opt for high-index lenses for superior impact resistance and comfort.

How much do rimless glasses cost?

One of the pros of rimless eyewear is that it is cost-effective, so you won’t need to exceed your budget. 

You can find affordable rimless glasses and designer eyewear to suit your every eye need and personal style. If you love durable sporty glasses, try Oakley rimless glasses, or discover our Arise Collective for something more eco-chic. 

How to adjust rimless glasses

Rimless glasses need extra delicacy when it comes to small repairings. To adjust loose screws, remove them from the frames, insert a new screw and tighten them with a jeweller’s screwdriver. Tighten it up to the point where it becomes difficult to turn to avoid cracking the lens where the hinge and lens meet. 

You can also slightly adjust the nose pads to make the glasses sit higher or lower on your face. Be careful when doing this with rimless progressive glasses, as they may alter your vision while wearing them. Undoubtedly, it’s always best to visit your local opticians for assistance.

Alternatives to rimless glasses

So, what are rimless glasses? Imagine a pair of prescription glasses without a frame, just the lenses, nose bridge and temples. 

After reading our article, you should have a better understanding of why some people prefer to wear rimless glasses and may want to try them yourself. Remember to take extra care of frameless glasses, as the lenses do not have the additional support full or semi-rimmed glasses may offer. 

If you’ve decided that rimless glasses are not the best option for your needs, you may want to explore different types of glasses to find what you love among trendy and practical everyday eyewear.

What Is Rimless Glasses - Everything You Need to Know

What are rimless glasses? | Pros and Cons | With prescription | Lens material | Cost | How to adjust Rimless glasses | Alternatives

By Emma Moletto
Reviewed by Sharlene McKeeman FBDO
Sharlene is a qualified dispensing optician with over 7 years optical experience, a member of the Association of British Dispensing Opticians and registered with the General Optical Council.
Are frameless eyeglasses right for you? Find out!

We know the endless choices of frames are overwhelming, so why not make it easier and try a pair of rimless glasses? This article will cover what rimless glasses are and what you need to know before buying your first pair. 

Discover the pros and cons of wearing rimless glasses and whether they are an affordable alternative to prescription glasses for you.

What are rimless glasses?

Rimless glasses, or frameless eyeglasses, are glasses with no frame. The nose bridge connects the lenses, and the temples are directly attached to the lenses. 

In the late 19th and early 20th centuries, the first widely available version of rimless glasses came as prince-nez. These glasses pinched the nose and didn’t have earpieces. Manufacturers went to a great extent to keep these glasses secure on the nose. Around World War 1, a version with two temple arms and a nose bridge emerged.

 In the coming decades, various other structural improvements were implemented, including nose pads, changing the type of screws and different style variations. Rimless glasses help bring more focus to your face and allow for a subtle look. 

In the 21st century, frameless glasses are usually made with quality, lightweight and durable materials, such as titanium, as they are more delicate than standard glasses.

What are the pros and cons of rimless glasses?

Like any pair of glasses, rimless glasses have features that appeal to some people rather than others. Let’s look into why rimless glasses may or may not be for you.

  • Cost-effective
  • Subtle – nearly invisible on your face 
  • Lightweight
  • You can look fashionable, professional, or casual, depending on the model

What are the disadvantages of rimless glasses?

  • Delicate and more prone to breakage since there’s no frame 
  • Not for those who want their glasses to show off their vibrant personalities
  • Not available in all frames styles, for example, not as cat-eye glasses
  • Not available for all prescription lenses (see next paragraph)

 

Consider the pros and cons to decide whether rimless eyeglasses are for you. If you like them and need prescription lenses, then let’s find out if frameless eyeglasses are suitable for your vision.

Can I get rimless glasses with a high prescription?

Prescription rimless eyeglasses are not suitable for high prescriptions. Indeed, it is not recommended to wear your frameless glasses if your prescription is higher than -6.00. 

Strong prescriptions have thicker lenses and need extra support, like semi-rimeless and full-rim glasses in plastic or metal frames. However, depending on the lens material and your prescription details, you might get away with frameless glasses, even with a high index. Consult our certified online opticians for more advice. 

Progressive lenses can be fitted to a rimless pair of glasses and work as effectively as other progressive prescription glasses (always depending on your prescription). The same goes for tinted lenses and transitions. 

You should have a regular eye test to have an updated version of your prescription. If you are unsure what your existing prescription is before buying a pair of rimless glasses, you can use our Lens Scanner tool and get the result straight to your phone.

Best lens material for rimless glasses

The lenses in frameless eyeglasses are more exposed than full or semi-rimmed glasses, so they’re more prone to breakage. Therefore, rimless glasses depend on certain types of lens materials. 

Standard plastic or glass lenses work best with full-rimmed glasses as they are fully covered. The lenses are more exposed in rimless glasses, and with glass or standard plastic lenses, they’d lack impact resistance. 

So, frameless eyeglasses depend on the quality and robust lens materials, and with high prescriptions, thicker lenses require more stability. 

High-quality plastic lenses, like Arise Collective™ Clarity Lenses  are a good option for frameless glasses with low prescriptions. They are lighter and thinner than standard glasses lenses and also offer UV protection and impact resistance. 

Higher prescriptions may require thicker lenses, which mean a heavier pair of glasses. High-index lenses are a great way to avoid heavy rimless glasses since they offer superior impact resistance. 

DID YOU KNOW?
The best lens material for rimless glasses is high-quality plastic, such as our Arise Collective™ Clarity Lenses . With higher prescriptions, it is recommended to opt for high-index lenses for superior impact resistance and comfort.

How much do rimless glasses cost?

One of the pros of rimless eyewear is that it is cost-effective, so you won’t need to exceed your budget. 

You can find affordable rimless glasses and designer eyewear to suit your every eye need and personal style. If you love durable sporty glasses, try Oakley rimless glasses, or discover our Arise Collective for something more eco-chic.

How to adjust rimless glasses

Rimless glasses need extra delicacy when it comes to small repairings. To adjust loose screws, remove them from the frames, insert a new screw and tighten them with a jeweller’s screwdriver. Tighten it up to the point where it becomes difficult to turn to avoid cracking the lens where the hinge and lens meet. 

You can also slightly adjust the nose pads to make the glasses sit higher or lower on your face. Be careful when doing this with rimless progressive glasses, as they may alter your vision while wearing them. 

Undoubtedly, it’s always best to visit your local opticians for assistance.

Alternatives to rimless glasses

So, what are rimless glasses? Imagine a pair of prescription glasses without a frame, just the lenses, nose bridge and temples. 

After reading our article, you should have a better understanding of why some people prefer to wear rimless glasses and may want to try them yourself. 

Remember to take extra care of frameless glasses, as the lenses do not have the additional support full or semi-rimmed glasses may offer. 

If you’ve decided that rimless glasses are not the best option for your needs, you may want to explore different types of glasses to find what you love among trendy and practical everyday eyewear.

How to Adjust Glasses

Ask the Optician

ASK NOW

How to Adjust Glasses

Adjust your glasses at home | Lenses are at different distances | Keep glasses from sliding down your nose | Adjust glasses behind your ears | Adjust crooked glasses | Tighten glasses with screwdriver | Optimal glasses adjustment

By Emma Moletto
Reviewed by Sharlene McKeeman FBDO
Sharlene is a qualified dispensing optician with over 7 years optical experience, a member of the Association of British Dispensing Opticians and registered with the General Optical Council.

If you wear prescription glasses, you’ll know that not only is it uncomfortable when your glasses don’t fit, but it also affects your quality of vision. 

When your optician or eye doctor gives you measurements, such as your pupillary distance, it’s based on your glasses fitting correctly. 

Keep reading to learn how to adjust glasses to improve fit for comfort and the best vision.

Can I adjust my glasses at home?

Sometimes new glasses, or glasses you wear often, can be misaligned for different reasons. Before bringing them to an optician, you can learn easy ways to make small adjustments and fix the most common issues.

The first thing to consider when learning to adjust glasses is the frame material you are working with. Metal frames and plastic frames will need to be handled differently. 

For instance, most plastic frame glasses do not have adjustable nose pads. However, many plastic frames nowadays have pads on arms for a more comfortable fit.

To tell whether or not it’s necessary to adjust glasses, set the glasses upside down on a flat surface with the  sides open, the sides should both be sitting flat on the table and not rock. If they do, they might need some small adjustments.

How to adjust glasses if the lenses are different distances from your eyes?

To adjust glasses when your left lens is closer to your eye, you can gently bend in on the left temple of the arm and out on the right temple simultaneously. Bend the opposite way if your right lens is the one closest to your eye. Be careful not to apply excessive force.

How do I keep my glasses from sliding down my nose?

If your glasses slide off your nose, the first thing to do is tighten them behind your ears. 

On metal frames, you can also adjust the nose pads to raise or lower the lenses to adjust the fit. If you have adjustable nose pads, simply push the nose pads closer together with your fingers until they sit comfortably on your nose without leaving marks. If your nose pads leave marks, make the opposite motion with the nose pads or temples. 

How do you adjust glasses around your ears?

If your glasses are too tight around your ears, bend the tips out and up. For wire frames, this might be easier to do.

If your glasses don’t bend easily (usually if they are made of acetate or plastic), you can always heat them where you intend to bend them. Make sure the heat source does not touch the lenses, as it might ruin the coatings and cause damage.

How to adjust crooked glasses

Again, for lenses of different heights, you’ll need to adjust the glasses’ arms. If the left lens is higher than the right, you’ll want to bend up the temple at the arm’s hinge on the right side. Do the opposite if the right lens is higher than the left one.

How to tighten glasses with a screwdriver

All types of eyeglasses have hinges held together by tiny screws. These screws are usually the first things that might need adjustments in your glasses. It’s important to check regularly if the screws are loose to avoid losing them. If they are, you might need to use a screwdriver to adjust them. 

Most glasses repair kits include screws and a small screwdriver specifically made for glasses. With the help of the screwdriver, carefully tighten the screws at the corners of the temples. Tighten them as much as possible, then loosen them by a half turn to ensure no strain is put on the sides. 

Avoid fixing your glasses yourself if a screw comes out or an arm separates. Instead, get your spectacles properly adjusted by an optician.

DID YOU KNOW?
If the screws of your glasses are a bit loose, you can use a small screwdriver to adjust them. Tighten them as much as you can, but be sure not to apply too much force.

Ask an optician for optimal glasses adjustments

If you’re unsure about adjusting glasses yourself, the best thing to do is to go to an optician for help. Some types of eyeglasses, such as rimless and semi-rimless ones, usually need more care and experience as they are more fragile than fully-rimmed eyeglass frames. 

Opticians are also the best option for adjusting metal frames better, especially if you need to adjust one nose pad arm or both of them.

If you need help with what to do with your current or new pair of glasses, you can contact one of our certified online opticians. They can advise you on what is best to do in your situation. 

You can also check out our Optical Center, an extensive information platform where you can find answers and explanations of all things related to eye care and glasses.

How to Adjust Glasses

Adjust your glasses at home | Lenses are at different distances | Keep glasses from sliding down your nose | Adjust glasses behind your ears | Adjust crooked glasses | Tighten glasses with screwdriver | Optimal glasses adjustment

By Emma Moletto
Reviewed by Sharlene McKeeman FBDO
Sharlene is a qualified dispensing optician with over 7 years optical experience, a member of the Association of British Dispensing Opticians and registered with the General Optical Council.

If you wear prescription glasses, you’ll know that not only is it uncomfortable when your glasses don’t fit, but it also affects your quality of vision. 

When your optician or eye doctor gives you measurements, such as your pupillary distance, it’s based on your glasses fitting correctly. 

Keep reading to learn how to adjust glasses to improve fit for comfort and the best vision.

Can I adjust my glasses at home?

Sometimes new glasses, or glasses you wear often, can be misaligned for different reasons. Before bringing them to an optician, you can learn easy ways to make small adjustments and fix the most common issues.

The first thing to consider when learning to adjust glasses is the frame material you are working with. Metal frames and plastic frames will need to be handled differently. 

For instance, most plastic frame glasses do not have adjustable nose pads. However, many plastic frames nowadays have pads on arms for a more comfortable fit.

To tell whether or not it’s necessary to adjust glasses, set the glasses upside down on a flat surface with the  sides open, the sides should both be sitting flat on the table and not rock. If they do, they might need some small adjustments.

How to adjust glasses if the lenses are different distances from your eyes?

To adjust glasses when your left lens is closer to your eye, you can gently bend in on the left temple of the arm and out on the right temple simultaneously.

Bend the opposite way if your right lens is the one closest to your eye. Be careful not to apply excessive force.

How do I keep my glasses from sliding down my nose?

If your glasses slide off your nose, the first thing to do is tighten them behind your ears. 

On metal frames, you can also adjust the nose pads to raise or lower the lenses to adjust the fit.

If you have adjustable nose pads, simply push the nose pads closer together with your fingers until they sit comfortably on your nose without leaving marks.

If your nose pads leave marks, make the opposite motion with the nose pads or temples.

How do you adjust glasses around your ears?

If your glasses are too tight around your ears, bend the tips out and up. For wire frames, this might be easier to do.

If your glasses don’t bend easily (usually if they are made of acetate or plastic), you can always heat them where you intend to bend them.

Make sure the heat source does not touch the lenses, as it might ruin the coatings and cause damage.

How to adjust crooked glasses

Again, for lenses of different heights, you’ll need to adjust the glasses’ arms. If the left lens is higher than the right, you’ll want to bend up the temple at the arm’s hinge on the right side. Do the opposite if the right lens is higher than the left one.

How to tighten glasses with a screwdriver

All types of eyeglasses have hinges held together by tiny screws. These screws are usually the first things that might need adjustments in your glasses.

It’s important to check regularly if the screws are loose to avoid losing them. If they are, you might need to use a screwdriver to adjust them. 

Most glasses repair kits include screws and a small screwdriver specifically made for glasses. With the help of the screwdriver, carefully tighten the screws at the corners of the temples. Tighten them as much as possible, then loosen them by a half turn to ensure no strain is put on the sides. 

Avoid fixing your glasses yourself if a screw comes out or an arm separates. Instead, get your spectacles properly adjusted by an optician.

DID YOU KNOW?
If the screws of your glasses are a bit loose, you can use a small screwdriver to adjust them. Tighten them as much as you can, but be sure not to apply too much force.

Ask an optician for optimal glasses adjustments

If you’re unsure about adjusting glasses yourself, the best thing to do is to go to an optician for help. Some types of eyeglasses, such as rimless and semi-rimless ones, usually need more care and experience as they are more fragile than fully-rimmed eyeglass frames. 

Opticians are also the best option for adjusting metal frames better, especially if you need to adjust one nose pad arm or both of them.

If you need help with what to do with your current or new pair of glasses, you can contact one of our certified online opticians. They can advise you on what is best to do in your situation. 

You can also check out our Optical Center, an extensive information platform where you can find answers and explanations of all things related to eye care and glasses.

Thinnest Lenses for High Prescription – What Are My Options?

Ask the Optician

ASK NOW

Thinnest Lenses for High Prescription Glasses- What Are My Options?

What are the thinnest lenses for high-prescription glasses? | Thinnest eyeglass lenses at SmartBuyGlasses | Are 1.74 lenses worth it? | Are the thinnest eyeglass lenses for me?

By Hannah Tinning
Reviewed by Sharlene McKeeman FBDO
Sharlene is a qualified dispensing optician with over 7 years optical experience, a member of the Association of British Dispensing Opticians and registered with the General Optical Council.
Lenses with a 1.74 index are the thinnest lenses for high-prescription wearers. They include many benefits like a scratch resistance coating and UV protection.

Finding glasses with thin and aesthetically pleasing lenses can be challenging for those with high prescriptions. Thick lenses can create the “coke bottle effect” protruding from the face and limiting your frame options. Not only do they look unappealing, but they also add extra weight, discomfort and risk of damage to the glasses. Luckily, advancements in manufacturing techniques have made it possible to create extra-thin lenses for glasses wearers with high prescriptions.

What are the thinnest lenses for high-prescription glasses?

What are the thinnest lenses for high-prescription glasses?

The thinnest lenses for high-prescription glasses are lenses that have a 1.74 index. These lenses are made from high-index plastic, which allows for a thinner and lighter lens compared to traditional lenses made from regular plastic.

The thin profile of 1.74 index lenses is thanks to the flatter curve that is utilised compared to standard, lower index lenses. Using a flatter curve, however, can lead to peripheral distortion. This is counteracted by integrating aspheric lens technology, which eliminates spherical aberration

Thanks to the development of high-index lenses, manufacturers can provide far slimmer eyewear lenses than in the past. If you are accustomed to a strong prescription in standard plastic, then making the change could significantly affect the thickness of your lenses. While even the thinnest lens cannot entirely hide the thickness of a high prescription lens 100%, it will drastically reduce how much it is seen. 

Thinnest eyeglass lenses at SmartBuyGlasses

Thinnest eyeglass lenses at SmartBuyGlasses

At SmartBuyGlasses, there’s a variety of lens indexes you can select from that cater to different prescription needs. From standard 1.50 index lenses to high-index lenses such as 1.67 and 1.74, a range of options ensures you can find the right lens you need. You can also select Arise Collective™ Clarity lenses that provide breakthrough lens technologies, optimised visual acuity and state-of-the-art protection for any prescription and frame

The higher the index lens, the more beneficial it will be if you have a strong prescription. Thanks to the reduced thickness and weight, you’ll still achieve comfortable wear and an aesthetically pleasing look. However, when selecting your lens index, you want to make sure you’re consulting your eye doctor before making the decision yourself. 

If you decide to go with the thinnest glasses lenses, you can choose from a range of different frame styles. With a 1.74 lens index, you can explore styles with delicate metal frames.  

DID YOU KNOW
At SmartBuyGlasses, lenses with a 1.74 lens index are ultra-thin and come with four lens coatings. With flatter Aspheric technology to improve your vision and enhance the aesthetics of your eyewear, they are the complete optical lens solution.

Are 1.74 lenses worth it?

Are 1.74 lenses worth it?

1.74 index lenses are worth it for individuals with strong prescriptions who want thin, lightweight glasses. However, they do come at a higher cost than lenses that use older technology and present lesser qualities. Of course, the higher price point comes from the thinness and the incorporated benefits.

  •  Weight. 1.74 index lenses can be more than 25% lighter than normal plastic lenses and more than 50% lighter than glass lenses.
  • Scratch resistance. High-index lenses have a higher resistance to scratches than standard plastic meaning you can dodge the hassle of distracting marks in your field of vision.
  • UV protection. 1.74 index lenses have UV400 protection which means they can filter out up to 99% of UVA and UVB rays.
  • Aspheric technology. They have a flatter surface, which results in clearer, more natural vision.
  • Anti-reflective. These high-index lenses will also aid in reducing glare and reflections, resulting in better visual clarity and less eye strain.
  • Super-hydrophobic. At SmartBuyGlasses, these lenses come with a super-hydrophobic coating that repels water, dust and dirt, keeping the lenses cleaner and clearer.

Are the thinnest eyeglass lenses for me?

Are the thinnest eyeglass lenses for me?

If you face the challenge of having a high prescription and finding glasses with thin lenses, then 1.74 index lenses might be for you. The benefits of thin lens glasses include being ultra-thin and lightweight, scratch-resistant, UV protected and super-hydrophobic. It’s important to note that you should always consult an eye doctor or one of our online opticians before deciding on your next pair of prescription glasses.  

Glasses For Small Faces: Tips on Getting the Perfect Eyewear Fit

Glasses For Small Faces: Tips on Getting the Perfect Eyewear Fit

Wondering if you need glasses for small faces? Have you ever been shopping for glasses and found that no matter how many pairs you try on, you still look like you have massive bug eyes? Glasses that drown your features, overpower your face and slide off your nose? If you can relate, you most likely have a small face shape and would benefit from buying glasses for small faces.

There are plenty of brands that now manufacture petite glasses specifically for narrow face shapes. This means that you can find the perfect pair, pull off the most stylish of looks and be trendy with your eyewear, no matter your face shape and size.

 

How should glasses for small faces fit

Comfort is the number one factor here. The aim of glasses for small faces is to provide a better, more secure fit without compromising comfort. So when you try on a pair of glasses for small faces, ensure they are the right size and feel secure without squeezing your head. Glasses for small faces are designed to have a shorter lens width, shorter temple arms and a narrower bridge frame. You can learn more about glasses frames here.

Many people with a narrower face shape resort to wearing children’s sunglasses. However, this often involves temples that are too short. Glasses for small faces are, therefore, the perfect solution, offering frame arms that are slightly longer than those on kids’ eyewear.

 

How to find out if you need glasses for small faces

There are several ways to find out if you need a smaller size of glasses.

 

Option 1) Find out what size your current glasses are. Look at the inside of the glasses frames and note the numbers that appear. Read on to find out what the measurements mean. Add a few millimetres to the measurements if you feel they are too tight, or reduce the number if they are too large when you wear them. For more information on finding glasses measurements, read our article here.

 

Option 2) Take a ruler or flexible measuring tape. To find your face width, stretch the measuring tool from temple to temple. Next, repeat the action across your jawline. This starts roughly an inch below your ear. Pick the larger of the two measurements: this is your face width. Now you need to find your face length. Go from your chin to the middle of your hairline. And here comes the maths: divide your face height by your face width. If you have a narrow face, your face height will be over 1.5 times the width.

 

Option 3) The process is considerably more straightforward if you already know your eye and bridge size. Simply follow this equation:

Eye size + bridge size = frame size

Eg. 47mm + 21mm = 68mm

 

Average frame sizes

In general, spectacles will look their best when the total width of the face matches that of the glasses frames. When considering glasses for small faces in particular, it is actually not a problem if the frame size is equal to, if not wider than, the face width. This means you should not worry if your glasses frames extend beyond your temples by about 3mm on each side. This widens the appearance of the face, creating a sense of balance with the length of the face.

For average face sizes, the frame width is generally 138mm wide. In contrast, a narrower face will require a frame width of nearer 126mm, which is quite a significant difference. If you find your face measurements within these figure ranges, you might want to consider wearing glasses for narrow faces. Here are some typical measurements for glasses for small faces.

 

 

Total frame width: 123-127mm (114-122mm for properly petite faces)

Lens width: 47-50mm (45-46mm for tiny faces)

Bridge width: 16-20mm (15-16mm for the narrowest of faces)

 

The lens width quoted here will offer a narrow fit in most frame shapes. However, round frames are an exception. Round frames tend to have slightly wider bridges and more petite lenses. On average, 43-48mm represents a typical lens width in round glasses for small faces. Due to the smaller lens size, the bridge size will be 2 or 3mm wider than that of other frame shapes.

 

Tips for checking that your glasses for small faces fit you well

Simply put, small glasses that fit properly will have frames that closely match the width of your face. In addition, the bridge will sit comfortably on your nose. A plastic fix bridge should sit flush at each side of the nose; there should be no gap at the top of the bridge on the frame and the bridge of the nose. Metal frames with nose pads can be adjusted by moving the pads out or in to loosen or tighten the fit at the bridge. In addition, your eyes will be perfectly centred in the middle of the lens.

 

Those are the basics. Next, you want to double-check that the glasses fit securely on your face. If you can fit a finger down between the side of the frame and your temple, then it’s too big and won’t be able to be adjusted. The issue will only worsen and get especially bad in warm weather.

 

If the frames pass this test, they can move on to the next round! In this next step, you want to be 100% sure that the glasses fit comfortably on your head and don’t feel too tight. If when putting the glasses on, the sides stretch out, it will be too tight and will leave red marks down the side of the face. This would stop you from wearing the spectacles for long periods. When trying on the frames, one way to check this is to see if there are any red marks or a hint of indentation behind your ears when you remove them. If you do find such a mark, choose a different pair.

 

Yet another checkpoint before buying petite glasses is how flush they are to your face. Consider whether your eyelashes are touching the lenses. This can be adjusted in most metal frames but not so easily in plastic frames. 9 out of 10 frames will have a slight tilt in them to accommodate this. You need to ensure that your eyes can move freely without your lashes coming into contact with the glasses. At this point, it is important to remember that your prescription lenses will be thicker than the test pair.

 

One final pointer to consider before settling on a pair of eyeglasses for small faces is where they sit on your face. Make sure the frames rest on the bridge of your nose rather than your cheekbones. The glasses don’t fit you correctly if the frames move as you switch between facial expressions.

 

Tips for choosing glasses for small faces

Once you’ve found a few pairs that meet the measurement criteria and pass all the good-fit and style tests, you can consider the frame design that will be most flattering for your narrow face.

People with smaller faces often find that more delicate frames, such as metal frames or thin acetate ones, are more flattering. Such petite frames complement their petite features and narrow face shapes. Another thing with glasses for narrow faces is that narrow frames draw more attention to your eyes. Therefore, it is recommended to find an acetate frame, the colour of which matches your eyes. It will make your eyes stand out and make the glasses look perfectly natural on your face.

 

Best glasses shape for small faces

Here are some quick tips for finding the frames that complement your face shape. Find your face shape with the helpful guide here.

 

Oval face shape: 

– Narrow frames will make your face appear overly long

– Find frames with more height, such as round or square glasses

– Thicker frames with wider lenses or aesthetic embellishments will help widen your face

 

Short face shape: 

– Tall frames will cause your face to look swamped in the glasses

– Go for shorter frame shapes like rectangular or oval

– Avoid oversized or pilot frames. These would accentuate the short face shape

– Be cautious with extra thick frames or black frames, as these could make your face look even smaller

 

Pear-shaped face: 

– Go for frames that are heavier on the top, such as browline glasses

 

Round face shape: 

– For round faces, we recommend more angular glasses frames with plenty of character, such as cat eye frames

– Square frames with bold colours will project a look of total confidence

 

Square face shape: 

– As the exact opposite of round face shapes, balance a square face with round or oval frames for a softer look

 

Diamond or Heart-Shaped face: 

– Take the focus off the pointed chin with a pair of browline glasses or classic cat eye frames

 

Prescription glasses for narrow faces

The two most important things to consider when choosing a  pair of glasses for small faces are your face shape and the lens index. The lens index depends on your prescription details; the higher the prescription, the higher the index. Ask your eye doctor or one of our opticians for advice on the best lens index for your prescription. 

Glasses that fit you properly are essential to ensure your prescription lenses do their job. Your eyes must be centred in the lenses to guarantee clarity of vision. 

As a general rule, positive prescriptions result in larger-looking eyes. Therefore, those with higher prescriptions should be careful of looking “bug-eyed” due to thicker lenses. On the other hand, high negative prescriptions can cause the lenses to peek out at the side of the frames. To help remedy this combination, avoid rimless glasses for small faces. A solution for higher prescriptions could be choosing thinner lenses that will reduce the magnification of the eye. For high negative prescriptions, plastic frames will help hide the thickness.

 

What glasses look good on a small face?

In this article, we have gathered all the tips to find the perfect eyewear fit. The most important things to know when shopping for glasses for a smaller face are your face shape and size. With this information and by following our tips and guidelines, it will be easy to find the perfect glasses. Remember that the same tips also apply to sunglasses, blue light glasses and any other type of glasses. If you have any further doubts or questions, you can always reach out to our team of certified online opticians for support.

Sorry, we could not find the following product IDs in our database: 583398. Please check and use correct values.

Glasses For Small Faces: Tips on Getting the Perfect Eyewear Fit

Wondering if you need glasses for small faces? Have you ever been shopping for glasses and found that no matter how many pairs you try on, you still look like you have massive bug eyes? Glasses that drown your features, overpower your face and slide off your nose? If you can relate, you most likely have a small face shape and would benefit from buying glasses for small faces.

There are plenty of brands that now manufacture petite glasses specifically for narrow face shapes. This means that you can find the perfect pair, pull off the most stylish of looks and be trendy with your eyewear, no matter your face shape and size.

 

How should glasses for small faces fit

Comfort is the number one factor here. The aim of glasses for small faces is to provide a better, more secure fit without compromising comfort. So when you try on a pair of glasses for small faces, ensure they are the right size and feel secure without squeezing your head. Glasses for small faces are designed to have a shorter lens width, shorter temple arms and a narrower bridge frame. You can learn more about glasses frames here.

Many people with a narrower face shape resort to wearing children’s sunglasses. However, this often involves temples that are too short. Glasses for small faces are, therefore, the perfect solution, offering frame arms that are slightly longer than those on kids’ eyewear.

 

How to find out if you need glasses for small faces

There are several ways to find out if you need a smaller size of glasses.

 

Option 1) Find out what size your current glasses are. Look at the inside of the glasses frames and note the numbers that appear. Read on to find out what the measurements mean. Add a few millimetres to the measurements if you feel they are too tight, or reduce the number if they are too large when you wear them. For more information on finding glasses measurements, read our article here.

 

Option 2) Take a ruler or flexible measuring tape. To find your face width, stretch the measuring tool from temple to temple. Next, repeat the action across your jawline. This starts roughly an inch below your ear. Pick the larger of the two measurements: this is your face width. Now you need to find your face length. Go from your chin to the middle of your hairline. And here comes the maths: divide your face height by your face width. If you have a narrow face, your face height will be over 1.5 times the width.

 

Option 3) The process is considerably more straightforward if you already know your eye and bridge size. Simply follow this equation:

Eye size + bridge size = frame size

Eg. 47mm + 21mm = 68mm

 

Average frame sizes

In general, spectacles will look their best when the total width of the face matches that of the glasses frames. When considering glasses for small faces in particular, it is actually not a problem if the frame size is equal to, if not wider than, the face width. This means you should not worry if your glasses frames extend beyond your temples by about 3mm on each side. This widens the appearance of the face, creating a sense of balance with the length of the face.

For average face sizes, the frame width is generally 138mm wide. In contrast, a narrower face will require a frame width of nearer 126mm, which is quite a significant difference. If you find your face measurements within these figure ranges, you might want to consider wearing glasses for narrow faces. Here are some typical measurements for glasses for small faces.

 

 

Total frame width: 123-127mm (114-122mm for properly petite faces)

Lens width: 47-50mm (45-46mm for tiny faces)

Bridge width: 16-20mm (15-16mm for the narrowest of faces)

 

The lens width quoted here will offer a narrow fit in most frame shapes. However, round frames are an exception. Round frames tend to have slightly wider bridges and more petite lenses. On average, 43-48mm represents a typical lens width in round glasses for small faces. Due to the smaller lens size, the bridge size will be 2 or 3mm wider than that of other frame shapes.

 

Tips for checking that your glasses for small faces fit you well

Simply put, small glasses that fit properly will have frames that closely match the width of your face. In addition, the bridge will sit comfortably on your nose. A plastic fix bridge should sit flush at each side of the nose; there should be no gap at the top of the bridge on the frame and the bridge of the nose. Metal frames with nose pads can be adjusted by moving the pads out or in to loosen or tighten the fit at the bridge. In addition, your eyes will be perfectly centred in the middle of the lens.

 

Those are the basics. Next, you want to double-check that the glasses fit securely on your face. If you can fit a finger down between the side of the frame and your temple, then it’s too big and won’t be able to be adjusted. The issue will only worsen and get especially bad in warm weather.

 

If the frames pass this test, they can move on to the next round! In this next step, you want to be 100% sure that the glasses fit comfortably on your head and don’t feel too tight. If when putting the glasses on, the sides stretch out, it will be too tight and will leave red marks down the side of the face. This would stop you from wearing the spectacles for long periods. When trying on the frames, one way to check this is to see if there are any red marks or a hint of indentation behind your ears when you remove them. If you do find such a mark, choose a different pair.

 

Yet another checkpoint before buying petite glasses is how flush they are to your face. Consider whether your eyelashes are touching the lenses. This can be adjusted in most metal frames but not so easily in plastic frames. 9 out of 10 frames will have a slight tilt in them to accommodate this. You need to ensure that your eyes can move freely without your lashes coming into contact with the glasses. At this point, it is important to remember that your prescription lenses will be thicker than the test pair.

 

One final pointer to consider before settling on a pair of eyeglasses for small faces is where they sit on your face. Make sure the frames rest on the bridge of your nose rather than your cheekbones. The glasses don’t fit you correctly if the frames move as you switch between facial expressions.

 

Tips for choosing glasses for small faces

Once you’ve found a few pairs that meet the measurement criteria and pass all the good-fit and style tests, you can consider the frame design that will be most flattering for your narrow face.

People with smaller faces often find that more delicate frames, such as metal frames or thin acetate ones, are more flattering. Such petite frames complement their petite features and narrow face shapes. Another thing with glasses for narrow faces is that narrow frames draw more attention to your eyes. Therefore, it is recommended to find an acetate frame, the colour of which matches your eyes. It will make your eyes stand out and make the glasses look perfectly natural on your face.

 

Best glasses shape for small faces

Here are some quick tips for finding the frames that complement your face shape. Find your face shape with the helpful guide here.

 

Oval face shape: 

– Narrow frames will make your face appear overly long

– Find frames with more height, such as round or square glasses

– Thicker frames with wider lenses or aesthetic embellishments will help widen your face

 

Short face shape: 

– Tall frames will cause your face to look swamped in the glasses

– Go for shorter frame shapes like rectangular or oval

– Avoid oversized or pilot frames. These would accentuate the short face shape

– Be cautious with extra thick frames or black frames, as these could make your face look even smaller

 

Pear-shaped face: 

– Go for frames that are heavier on the top, such as browline glasses

 

Round face shape: 

– For round faces, we recommend more angular glasses frames with plenty of character, such as cat eye frames

– Square frames with bold colours will project a look of total confidence

 

Square face shape: 

– As the exact opposite of round face shapes, balance a square face with round or oval frames for a softer look

 

Diamond or Heart-Shaped face: 

– Take the focus off the pointed chin with a pair of browline glasses or classic cat eye frames

 

Prescription glasses for narrow faces

The two most important things to consider when choosing a  pair of glasses for small faces are your face shape and the lens index. The lens index depends on your prescription details; the higher the prescription, the higher the index. Ask your eye doctor or one of our opticians for advice on the best lens index for your prescription. 

Glasses that fit you properly are essential to ensure your prescription lenses do their job. Your eyes must be centred in the lenses to guarantee clarity of vision. 

As a general rule, positive prescriptions result in larger-looking eyes. Therefore, those with higher prescriptions should be careful of looking “bug-eyed” due to thicker lenses. On the other hand, high negative prescriptions can cause the lenses to peek out at the side of the frames. To help remedy this combination, avoid rimless glasses for small faces. A solution for higher prescriptions could be choosing thinner lenses that will reduce the magnification of the eye. For high negative prescriptions, plastic frames will help hide the thickness.

 

What glasses look good on a small face?

In this article, we have gathered all the tips to find the perfect eyewear fit. The most important things to know when shopping for glasses for a smaller face are your face shape and size. With this information and by following our tips and guidelines, it will be easy to find the perfect glasses. Remember that the same tips also apply to sunglasses, blue light glasses and any other type of glasses. If you have any further doubts or questions, you can always reach out to our team of certified online opticians for support.

Sorry, we could not find the following product IDs in our database: 583398. Please check and use correct values.

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